Mathematics, 21.04.2020 21:50 jeff6284
NeverReady batteries has engineered a newer, longer lasting AAA battery. The company claims this battery has an average life span of 15 hours with a standard deviation of 0.8 hours. Your statistics class questions this claim. As a class, you randomly select 30 batteries and find that the sample mean life span is 14.7 hours. If the process is working properly, what is the probability of getting a random sample of 30 batteries in which the sample mean lifetime is 14.7 hours or less? Is the company's claim reasonable? (Round your probability to four decimal places.)The company's claim is not reasonable because the probability that a sample of 30 batteries would have a lifetime of at most 14.7 hours is about ?
Answers: 2
Mathematics, 21.06.2019 13:30, raquelqueengucci25
If δmtv is reflected across the y-axis, what are the resulting coordinates of point m? a) (-2, 5) b) (-5, 2) c) (5, -2) d) (-2, -5)
Answers: 1
Mathematics, 21.06.2019 14:00, cami30031cami3003
Which pair of lines is parallel? a. y=4x+1 and y+4=5 b. y=-2+x and 2y-2x=-2 c. y=1/4x + 2 and y-2=1/2x d. y=1/5x+1 and 5y+x= 10
Answers: 2
Mathematics, 21.06.2019 14:30, cameronrandom00
You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )
Answers: 1
Mathematics, 21.06.2019 17:20, clairajogriggsk
Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?
Answers: 2
NeverReady batteries has engineered a newer, longer lasting AAA battery. The company claims this bat...
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